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1) Lesson 9 Practice Problems An image of a book shown on a website is 1.5 inches wide and 3 inches tall on a computer monitor. The actual book is 9 inches wide. a. What scale is being used for the image? b. How tall is the actual book? Show your work.

Respuesta :

We have:

Image of book on website

Wide = 1.5 inches

Tall = 3 inches

Actual book

Wide = 9 inches

Tall = ?

a) Scale used for the image:

[tex]\frac{wide\text{ actual book}}{wide\text{ image book}}=\frac{9}{1.5}=6[/tex]

Answer: scale = 6 inches

b) Tall actual book

[tex]\text{tall image book }\times scale=3\times6=18[/tex]

Answer: tall = 18 inches

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